I don't think Apple will ever release another Vision headset as we know it today. I think the gameplan was to get a really expensive devkit out to developers and early adopters with the specs that they believe they will be able to fit in a par of glasses within 5-6 years of the original launch date. If for some reason the thing took off and was selling a lot of units, I think they would have pursued a more iterative approach to the hardware, but with it clearly not being something consumers are interested in with the current hardware, I think they have fully shifted this to a very public r&d project. I highly doubt the actual hardware specs would have ever changed regardless of form factor and weight improvements, until the Apple Spectacle release somewhere around 2030.
